drivers/ata/pata_pcmcia.c

   1 /*
   2  *   pata_pcmcia.c - PCMCIA PATA controller driver.
   3  *   Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
   4  *   PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
   5  *                                              <openembedded@hrw.one.pl>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2, or (at your option)
  10  *  any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; see the file COPYING.  If not, write to
  19  *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  *   Heavily based upon ide-cs.c
  22  *   The initial developer of the original code is David A. Hinds
  23  *   <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  24  *   are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  25  */
  26
  27 #include <linux/kernel.h>
  28 #include <linux/module.h>
  29 #include <linux/init.h>
  30 #include <linux/blkdev.h>
  31 #include <linux/delay.h>
  32 #include <scsi/scsi_host.h>
  33 #include <linux/ata.h>
  34 #include <linux/libata.h>
  35
  36 #include <pcmcia/cs_types.h>
  37 #include <pcmcia/cs.h>
  38 #include <pcmcia/cistpl.h>
  39 #include <pcmcia/ds.h>
  40 #include <pcmcia/cisreg.h>
  41 #include <pcmcia/ciscode.h>
  42
  43
  44 #define DRV_NAME "pata_pcmcia"
  45 #define DRV_VERSION "0.2.11"
  46
  47 /*
  48  *      Private data structure to glue stuff together
  49  */
  50
  51 struct ata_pcmcia_info {
  52         struct pcmcia_device *pdev;
  53         int             ndev;
  54         dev_node_t      node;
  55 };
  56
  57 static struct scsi_host_template pcmcia_sht = {
  58         .module                 = THIS_MODULE,
  59         .name                   = DRV_NAME,
  60         .ioctl                  = ata_scsi_ioctl,
  61         .queuecommand           = ata_scsi_queuecmd,
  62         .can_queue              = ATA_DEF_QUEUE,
  63         .this_id                = ATA_SHT_THIS_ID,
  64         .sg_tablesize           = LIBATA_MAX_PRD,
  65         .cmd_per_lun            = ATA_SHT_CMD_PER_LUN,
  66         .emulated               = ATA_SHT_EMULATED,
  67         .use_clustering         = ATA_SHT_USE_CLUSTERING,
  68         .proc_name              = DRV_NAME,
  69         .dma_boundary           = ATA_DMA_BOUNDARY,
  70         .slave_configure        = ata_scsi_slave_config,
  71         .slave_destroy          = ata_scsi_slave_destroy,
  72         .bios_param             = ata_std_bios_param,
  73 };
  74
  75 static struct ata_port_operations pcmcia_port_ops = {
  76         .port_disable   = ata_port_disable,
  77         .tf_load        = ata_tf_load,
  78         .tf_read        = ata_tf_read,
  79         .check_status   = ata_check_status,
  80         .exec_command   = ata_exec_command,
  81         .dev_select     = ata_std_dev_select,
  82
  83         .freeze         = ata_bmdma_freeze,
  84         .thaw           = ata_bmdma_thaw,
  85         .error_handler  = ata_bmdma_error_handler,
  86         .post_internal_cmd = ata_bmdma_post_internal_cmd,
  87
  88         .qc_prep        = ata_qc_prep,
  89         .qc_issue       = ata_qc_issue_prot,
  90
  91         .data_xfer      = ata_data_xfer_noirq,
  92
  93         .irq_handler    = ata_interrupt,
  94         .irq_clear      = ata_bmdma_irq_clear,
  95         .irq_on         = ata_irq_on,
  96         .irq_ack        = ata_irq_ack,
  97
  98         .port_start     = ata_port_start,
  99 };
 100
 101 #define CS_CHECK(fn, ret) \
 102 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
 103
 104 /**
 105  *      pcmcia_init_one         -       attach a PCMCIA interface
 106  *      @pdev: pcmcia device
 107  *
 108  *      Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
 109  *      shared IRQ.
 110  */
 111
 112 static int pcmcia_init_one(struct pcmcia_device *pdev)
 113 {
 114         struct ata_probe_ent ae;
 115         struct ata_pcmcia_info *info;
 116         tuple_t tuple;
 117         struct {
 118                 unsigned short buf[128];
 119                 cisparse_t parse;
 120                 config_info_t conf;
 121                 cistpl_cftable_entry_t dflt;
 122         } *stk = NULL;
 123         cistpl_cftable_entry_t *cfg;
 124         int pass, last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM;
 125         unsigned long io_base, ctl_base;
 126         void __iomem *io_addr, *ctl_addr;
 127
 128         info = kzalloc(sizeof(*info), GFP_KERNEL);
 129         if (info == NULL)
 130                 return -ENOMEM;
 131
 132         /* Glue stuff together. FIXME: We may be able to get rid of info with care */
 133         info->pdev = pdev;
 134         pdev->priv = info;
 135
 136         /* Set up attributes in order to probe card and get resources */
 137         pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 138         pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
 139         pdev->io.IOAddrLines = 3;
 140         pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
 141         pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
 142         pdev->conf.Attributes = CONF_ENABLE_IRQ;
 143         pdev->conf.IntType = INT_MEMORY_AND_IO;
 144
 145         /* Allocate resoure probing structures */
 146
 147         stk = kzalloc(sizeof(*stk), GFP_KERNEL);
 148         if (!stk)
 149                 goto out1;
 150
 151         cfg = &stk->parse.cftable_entry;
 152
 153         /* Tuples we are walking */
 154         tuple.TupleData = (cisdata_t *)&stk->buf;
 155         tuple.TupleOffset = 0;
 156         tuple.TupleDataMax = 255;
 157         tuple.Attributes = 0;
 158
 159         /* See if we have a manufacturer identifier. Use it to set is_kme for
 160            vendor quirks */
 161         is_kme = ((pdev->manf_id == MANFID_KME) &&
 162                   ((pdev->card_id == PRODID_KME_KXLC005_A) ||
 163                    (pdev->card_id == PRODID_KME_KXLC005_B)));
 164
 165         /* Not sure if this is right... look up the current Vcc */
 166         CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf));
 167 /*      link->conf.Vcc = stk->conf.Vcc; */
 168
 169         pass = io_base = ctl_base = 0;
 170         tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
 171         tuple.Attributes = 0;
 172         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
 173
 174         /* Now munch the resources looking for a suitable set */
 175         while (1) {
 176                 if (pcmcia_get_tuple_data(pdev, &tuple) != 0)
 177                         goto next_entry;
 178                 if (pcmcia_parse_tuple(pdev, &tuple, &stk->parse) != 0)
 179                         goto next_entry;
 180                 /* Check for matching Vcc, unless we're desperate */
 181                 if (!pass) {
 182                         if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
 183                                 if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
 184                                         goto next_entry;
 185                         } else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
 186                                 if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
 187                                         goto next_entry;
 188                         }
 189                 }
 190
 191                 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 192                         pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
 193                 else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
 194                         pdev->conf.Vpp = stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
 195
 196                 if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
 197                         cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
 198                         pdev->conf.ConfigIndex = cfg->index;
 199                         pdev->io.BasePort1 = io->win[0].base;
 200                         pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
 201                         if (!(io->flags & CISTPL_IO_16BIT))
 202                                 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
 203                         if (io->nwin == 2) {
 204                                 pdev->io.NumPorts1 = 8;
 205                                 pdev->io.BasePort2 = io->win[1].base;
 206                                 pdev->io.NumPorts2 = (is_kme) ? 2 : 1;
 207                                 if (pcmcia_request_io(pdev, &pdev->io) != 0)
 208                                         goto next_entry;
 209                                 io_base = pdev->io.BasePort1;
 210                                 ctl_base = pdev->io.BasePort2;
 211                         } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
 212                                 pdev->io.NumPorts1 = io->win[0].len;
 213                                 pdev->io.NumPorts2 = 0;
 214                                 if (pcmcia_request_io(pdev, &pdev->io) != 0)
 215                                         goto next_entry;
 216                                 io_base = pdev->io.BasePort1;
 217                                 ctl_base = pdev->io.BasePort1 + 0x0e;
 218                         } else goto next_entry;
 219                         /* If we've got this far, we're done */
 220                         break;
 221                 }
 222 next_entry:
 223                 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
 224                         memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
 225                 if (pass) {
 226                         CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(pdev, &tuple));
 227                 } else if (pcmcia_get_next_tuple(pdev, &tuple) != 0) {
 228                         CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
 229                         memset(&stk->dflt, 0, sizeof(stk->dflt));
 230                         pass++;
 231                 }
 232         }
 233
 234         CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
 235         CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
 236
 237         /* iomap */
 238         ret = -ENOMEM;
 239         io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
 240         ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
 241         if (!io_addr || !ctl_addr)
 242                 goto failed;
 243
 244         /* Success. Disable the IRQ nIEN line, do quirks */
 245         iowrite8(0x02, ctl_addr);
 246         if (is_kme)
 247                 iowrite8(0x81, ctl_addr + 0x01);
 248
 249         /* FIXME: Could be more ports at base + 0x10 but we only deal with
 250            one right now */
 251         if (pdev->io.NumPorts1 >= 0x20)
 252                 printk(KERN_WARNING DRV_NAME ": second channel not yet supported.\n");
 253
 254         /*
 255          *      Having done the PCMCIA plumbing the ATA side is relatively
 256          *      sane.
 257          */
 258
 259         memset(&ae, 0, sizeof(struct ata_probe_ent));
 260         INIT_LIST_HEAD(&ae.node);
 261         ae.dev = &pdev->dev;
 262         ae.port_ops = &pcmcia_port_ops;
 263         ae.sht = &pcmcia_sht;
 264         ae.n_ports = 1;
 265         ae.pio_mask = 1;                /* ISA so PIO 0 cycles */
 266         ae.irq = pdev->irq.AssignedIRQ;
 267         ae.irq_flags = SA_SHIRQ;
 268         ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
 269         ae.port[0].cmd_addr = io_addr;
 270         ae.port[0].altstatus_addr = ctl_addr;
 271         ae.port[0].ctl_addr = ctl_addr;
 272         ata_std_ports(&ae.port[0]);
 273
 274         ret = -ENODEV;
 275         if (ata_device_add(&ae) == 0)
 276                 goto failed;
 277
 278         info->ndev = 1;
 279         kfree(stk);
 280         return 0;
 281
 282 cs_failed:
 283         cs_error(pdev, last_fn, last_ret);
 284 failed:
 285         kfree(stk);
 286         info->ndev = 0;
 287         pcmcia_disable_device(pdev);
 288 out1:
 289         kfree(info);
 290         return ret;
 291 }
 292
 293 /**
 294  *      pcmcia_remove_one       -       unplug an pcmcia interface
 295  *      @pdev: pcmcia device
 296  *
 297  *      A PCMCIA ATA device has been unplugged. Perform the needed
 298  *      cleanup. Also called on module unload for any active devices.
 299  */
 300
 301 static void pcmcia_remove_one(struct pcmcia_device *pdev)
 302 {
 303         struct ata_pcmcia_info *info = pdev->priv;
 304         struct device *dev = &pdev->dev;
 305
 306         if (info != NULL) {
 307                 /* If we have attached the device to the ATA layer, detach it */
 308                 if (info->ndev) {
 309                         struct ata_host *host = dev_get_drvdata(dev);
 310                         ata_host_detach(host);
 311                         dev_set_drvdata(dev, NULL);
 312                 }
 313                 info->ndev = 0;
 314                 pdev->priv = NULL;
 315         }
 316         pcmcia_disable_device(pdev);
 317         kfree(info);
 318 }
 319
 320 static struct pcmcia_device_id pcmcia_devices[] = {
 321         PCMCIA_DEVICE_FUNC_ID(4),
 322         PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000),        /* Hitachi */
 323         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
 324         PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),
 325         PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000),        /* Toshiba */
 326         PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
 327         PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000),        /* Samsung */
 328         PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000),        /* Hitachi */
 329         PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
 330         PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200),        /* Lexar */
 331         PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
 332         PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
 333         PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
 334         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
 335         PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
 336         PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
 337         PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
 338         PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
 339         PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
 340         PCMCIA_DEVICE_PROD_ID12("EXP   ", "CD-ROM", 0x0a5c52fd, 0x66536591),
 341         PCMCIA_DEVICE_PROD_ID12("EXP   ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
 342         PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
 343         PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
 344         PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
 345         PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
 346         PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
 347         PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2      ", 0x547e66dc, 0x8671043b),
 348         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
 349         PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
 350         PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2      ", 0xe37be2b5, 0x8671043b),
 351         PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
 352         PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
 353         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
 354         PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
 355         PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
 356         PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
 357         PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
 358         PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
 359         PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
 360         PCMCIA_DEVICE_PROD_ID1("TRANSCEND    512M   ", 0xd0909443),
 361         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
 362         PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
 363         PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
 364         PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
 365         PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
 366         PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
 367         PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
 368         PCMCIA_DEVICE_NULL,
 369 };
 370
 371 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
 372
 373 static struct pcmcia_driver pcmcia_driver = {
 374         .owner          = THIS_MODULE,
 375         .drv = {
 376                 .name           = DRV_NAME,
 377         },
 378         .id_table       = pcmcia_devices,
 379         .probe          = pcmcia_init_one,
 380         .remove         = pcmcia_remove_one,
 381 };
 382
 383 static int __init pcmcia_init(void)
 384 {
 385         return pcmcia_register_driver(&pcmcia_driver);
 386 }
 387
 388 static void __exit pcmcia_exit(void)
 389 {
 390         pcmcia_unregister_driver(&pcmcia_driver);
 391 }
 392
 393 MODULE_AUTHOR("Alan Cox");
 394 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
 395 MODULE_LICENSE("GPL");
 396 MODULE_VERSION(DRV_VERSION);
 397
 398 module_init(pcmcia_init);
 399 module_exit(pcmcia_exit);